it's a combination of the ending and a prt of episode 7..
mizuki arrived during their graduation ceremony..
she gave sano a cake (dunno if that's really a cake) and it was written there that she loves izumi..
they also showed a soccer game (nakatsu's the lead) and it was a funny one..

ya. the ending i saw is mizuki giving sano a cake/cookie(not sure) wit a heart n the name izumi in it... but in the other forum "hana kimi sp details" they say on the cake/cookie she said she liked nakatsu...im confused